Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
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After
Before
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Before
AfterFast, Reliable Duct Sealing Across Doraville
Duct sealing in Doraville typically runs $800 – $1,800 for a whole-home job, and most homes here need it whether they know it or not. If your utility bills climb every summer or certain rooms never match the thermostat, you’re probably paying to cool your crawlspace. We’re Hollis Air Duct Cleaning, part of the Garrison Partners family, and our crews handle Doraville Dryer Vent Cleaning and duct sealing regularly – from the original ranch homes off Buford Highway to the newer townhomes near North Shallowford Road. Scheduling and dispatch are coordinated from our Atlanta office, and we carry the tools and materials to seal both old metal ductwork and modern flex runs on the same visit. Call (361) 326-5060 for a free estimate and written price before any work starts.
Why Hollis Air Duct Cleaning Is Doraville’s Preferred Duct Sealing Company
We’ve been doing this since 2004. That’s longer than most duct cleaning outfits in metro Atlanta have existed, and our Duct Sealing team has learned what Doraville homes specifically need. Our technicians are background-checked, uniformed, and expected to operate by The Garrison Code: arrive inside the quoted window, price in writing, complete the job by the book, and leave the site clean. Every repair we make carries our 365-Day Done Right Promise – if the work fails within a year, we return and make it right at no charge, including a free second visit. Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops. No callback queues.
Doraville’s housing mix sets it apart from neighboring markets. You won’t find this specific combination of 1960s ranch stock and new infill townhomes in Sandy Springs or Roswell in the same concentration. We know the difference because we’ve sealed ducts in both. Our Duct Sealing in Doraville work is built around that local knowledge.
Duct Sealing Services in Doraville
Duct Sealing Services in Doraville cover two fundamentally different repair scenarios that happen to share the same zip code. The first is original metal ductwork in 1950s-70s ranch homes and remaining factory-built housing, where decades of thermal expansion have loosened joints and degraded the original tape. The second is newer townhome and apartment developments along Buford Highway, where thin flex duct was often crushed or kinked during installation at tight ceiling transitions. Sealing the first means mastic application, joint reconnection, and sometimes metal patching. Sealing the second means replacing crushed flex runs, properly supporting sagging lines, and ensuring connections at the plenum are airtight. A typical whole-home duct sealing job in Doraville runs $800 – $1,800 depending on system size, access, and whether we’re working with accessible metal or buried flex.
Metal Duct Restoration
Original galvanized steel ductwork lasts decades, but the seals don’t. We remove failing tape, clean joint surfaces, and apply UL-181 rated mastic – a thick, flexible sealant that remains pliable as metal expands and contracts. In Doraville’s humid summers, this matters. Rigid sealants crack. Mastic doesn’t.
Flex Duct Repair and Sealing
Crushed flex duct can’t be sealed back into shape. We replace damaged runs with properly sized, supported flex, then seal all connections with metal-backed tape and mastic. The goal is restoring designed airflow, not just patching what the builder left wrong.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Duct Insulation in Doraville
Duct Insulation in Doraville addresses a problem that sealing alone can’t fix: thermal loss through uninsulated or degraded duct walls. In original ranch homes with metal ductwork running through vented attics or crawlspaces, uninsulated supply lines lose 20 – 30% of their cooling capacity before air reaches the register. That’s money spent to cool your attic joists. In newer townhomes, flex duct usually carries a thin fiberglass blanket, but we’ve found many Buford Highway installations where that insulation was compressed during installation or damaged by moisture. Duct insulation in Doraville typically adds $400 – $900 to a sealing job, depending on linear feet and whether we’re wrapping existing metal or replacing water-damaged flex with insulated line. We use professional-grade materials from Honeywell and Aprilaire, specified to local code and installed to stay put.
Attic and Crawlspace Wrap
For exposed metal ductwork, we install foil-faced fiberglass wrap or closed-cell foam insulation where appropriate, sealed at seams to prevent condensation. In Doraville’s muggy summers, this stops the sweating that leads to mold and duct degradation.
Insulated Flex Replacement
When existing flex has lost its R-value to compression or moisture, we replace with new insulated flex duct, properly supported at maximum 4-foot intervals to prevent future sagging and crush points.
Trusted Brands We Service in Doraville
We stock and install filtration and sealing products from Honeywell, Aprilaire, and Abatement Technologies – the same brands commercial HVAC crews specify. For Doraville homeowners, that means no waiting on special orders for standard repairs. Our vans carry mastic, metal-backed tape, insulated flex, and replacement fittings sized for both the 6-inch and 8-inch metal common in older ranches and the 4-inch to 10-inch flex found in newer construction. If your system uses a Honeywell electronic air cleaner or Aprilaire media filter, we can inspect and maintain those components during the same visit. Parts on the truck. Price in writing before we start. That’s how we work.
Common Duct Sealing Problems We See in Doraville Homes
- Disconnected supply runs in crawlspaces. The original metal ductwork in Doraville’s 1960s ranch homes was often supported with wire hangers that corrode or fatigue. We’ve found entire supply runs dropped onto the crawlspace floor, dumping conditioned air for years while the homeowner wondered why the back bedroom stayed hot.
- Crushed flex at townhome ceiling transitions. Builders working tight spaces along Buford Highway routinely forced flex duct through openings too small, creating kinks that reduce airflow by half. Cleaning the duct doesn’t restore what the crush has already destroyed.
- Failing original tape on metal joints. Cloth-backed duct tape degrades to powder in 10 – 15 years. In Doraville’s older homes, that tape is now 50+ years old. Every joint leaks. The system runs longer, works harder, and still can’t balance temperatures.
- Unsealed return paths drawing in pollen and odors. Atlanta’s heavy spring and fall tree pollen gets drawn through gaps in return ductwork, coating interior surfaces. Near Buford Highway, cooking grease and restaurant odors follow the same path into residential systems. Sealing returns is often the only fix that sticks.
Pricing for Duct Sealing in Doraville, GA
Most whole-home duct sealing jobs in Doraville fall between $800 and $1,800. A small ranch with accessible metal ductwork and straightforward joint sealing sits at the lower end. A larger home with multiple crushed flex runs, attic work, or the addition of duct insulation pushes toward the higher end. We don’t quote per-vent or per-register. One flat price per system, agreed in writing before any work starts. The price does not move at the door. What affects cost: system size (number of supply and return runs), access conditions (crawlspace height, attic temperature), material type (metal restoration versus flex replacement), and whether insulation work is added. Every estimate is free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Doraville
Our crews cover the full metro Atlanta area, including Doraville and neighboring Atlanta, South Fulton, Sandy Springs, and Roswell. The same written pricing, same 365-Day Done Right Promise, same uniformed technicians – no matter which side of the Perimeter you’re on.
Serving Doraville, GA - Our Local Coverage Area
We’re based in the Doraville area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Duct Sealing in Doraville
Sealing usually helps significantly, and full replacement is rarely necessary. The metal itself in 1960s Doraville ranch homes is often sound galvanized steel; what’s failed is the joint tape and the original seals. We remove degraded material, reconnect any separated runs, and apply mastic that flexes with thermal expansion. Most homeowners see immediate temperature balancing and lower utility bills. Call (361) 326-5060 for a camera inspection and exact quote – estimates are free.
Because the problem is physical damage, not contamination. Flex duct crushed during installation can’t be cleaned back into shape. No amount of rotary brushing restores airflow through a kinked line. Sealing here means replacing damaged flex, properly supporting it, and ensuring airtight connections. Cleaning is secondary until the duct can actually carry air. If you’re in a Buford Highway townhome with weak airflow at certain registers, crushed flex is the likely culprit.
It can help substantially, but it’s part of a broader strategy. Unsealed return ductwork creates negative pressure that pulls in outside air – including grease and cooking odors from the dense commercial corridor along Buford Highway. Sealing those return paths stops the suction. For persistent odor issues, we may also recommend upgraded filtration from Honeywell or Aprilaire. We assess each home individually and quote both approaches in writing.
Humidity makes proper materials and technique essential. Atlanta’s muggy summers create condensation on cool duct surfaces, which degrades inferior sealants and promotes mold. We use mastic rated for wet conditions, not tape alone, and we verify that insulation is intact where condensation forms. A sealed system in Doraville should last 15 – 20 years if done right. Our 365-Day Done Right Promise covers that first year completely – if anything fails, we return at no charge.
We start with a pressure test and camera inspection to locate leaks, disconnections, and crush points. Then we seal accessible joints with mastic, reconnect separated runs, replace damaged flex, and reinsure to verify improvement. You get before-and-after photos of your own ductwork, not stock images. The whole process typically takes 4 – 6 hours for a standard Doraville home. Call (361) 326-5060 to schedule – we’ll give you a written price before any work begins.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Doraville and metro Atlanta since 2004.